dark purple. Soluble in water for red, soluble in ethanol for titian. In concentrated sulfuric acid for blue purple, red after diluted solution, and then a brick red precipitation. Dye aqueous solution to join concentrated hydrochloric acid to red; Join concentrated sodium hydroxide solution for orange.
|
Standard
|
Ironing Fastness
|
Light Fastness
|
Fulling
|
Persperation Fastness
|
Soaping
|
Water
|
|
Alkali
|
Acid
|
|
ISO
|
4
|
6
|
4
|
|
5
|
5
|
5
|
